CVE-2021-22764
Last modified
CVE-2021-22764 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.. EPSS estimates a 1.86% chance of exploitation in the next 30 days.
Description
A CWE-287: Improper Authentication vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could cause loss of connectivity to the device via Modbus TCP protocol when an attacker sends a specially crafted HTTP request.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Schneider-Electric | Powerlogic Pm5560 Firmware | < 2.7.8 |
| Schneider-Electric | Powerlogic Pm5561 Firmware | < 10.7.3 |
| Schneider-Electric | Powerlogic Pm5562 Firmware | <= 2.5.4 |
| Schneider-Electric | Powerlogic Pm5563 Firmware | < 2.7.8 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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